解除遇到浏览器不让切屏、复制粘贴等其他快捷键的限制

解除遇到浏览器不让切屏、复制粘贴等其他快捷键的限制；只需要F12在console上执行以下代码即可。

解除切屏限制

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window.onblur = null window.onblur = function() {    console.debug(1)   }

解除快捷键操作

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window.onkeyup = window.onkeydown = window.onKeyPress = document.onkeyup = document.onkeydown = document.onKeyPress = document.body.onkeyup = document.body.onkeydown = document.body.onKeyPress = onkeyup = onkeydown = onKeyPress = null

解除复制粘贴限制

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window.oncopy = window.onpaste = document.oncopy = document.onpaste = document.body.oncopy = document.body.onpaste = oncopy = onpaste = null